Fixing image canvas resize problems when showing/hiding system UI.

remoting/android/java/src/org/chromium/chromoting/TouchInputHandler.java

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 package org.chromium.chromoting;
 
+import android.graphics.Rect;
 import android.view.MotionEvent;
 
 /**
  * This interface allows multiple styles of touchscreen UI to be implemented and dynamically
  * switched. The DesktopView passes the low-level touchscreen events and other events via this
  * interface. The implementation recognizes and processes the touchscreen gestures, and then
  * performs actions on the DesktopView (such as panning/zooming the display, injecting input, or
  * showing/hiding UI elements). All methods are called on the main UI thread.
  */
 public interface TouchInputHandler {
@@ skipping 14 matching lines @@
      */
     void onClientSizeChanged(int width, int height);
 
     /**
      * Called when the host screen size is changed. The caller will handle repainting after this
      * method returns.
      */
     void onHostSizeChanged(int width, int height);
 
     /**
+     * Called when the visibility of the soft input method has changed.
+     * The innerBounds parameter describes the amount of space used by SystemUI along each edge of
+     * the screen.  The status bar is typically shown along the top, soft input UI is generally
+     * shown at the bottom.  The navigation bar is shown along the bottom for tablets and along the
+     * right side for phones in landscape mode (it shown at the bottom in portrait mode).
+     */
+    void onSoftInputMethodVisibilityChanged(boolean inputMethodVisible, Rect innerBounds);
+
+    /**
      * Whilst an animation is in progress, this method is called repeatedly until the animation is
      * cancelled. After this method returns, the DesktopView will schedule a repaint.
      */
     void processAnimation();
 }